MagnaFlow OEM-Grade Direct-Fit Catalytic Converter - Chevrolet Silverado 2500HD / GMC Sierra 2500HD 2001-2006

MagnaFlow OEM Grade Federal and EPA compliant direct-fit converter 21-989 keeps the check engine light off with free flowing mandrel bent tubing and corrosion resistant stainless construction. The spun body replicates the OE design so a single laser fusion weld reduces leak risk while the compact low-mass build improves thermal efficiency, installing without cutting or welding.

Specifications

Documents: Technical Bulletin (PDF)

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy